<template>
	<view>
		<!-- 使用自定义组件 -->
		<my-Search01 @click="gotoSearch"></my-Search01>
	
		<!-- 包裹容器 -->
		<view class="scroll-view-container">
			<!-- 左侧的滑动区 -->
			<scroll-view  class="left-scroll-view" scroll-y="true" :style="{height:wh+'px'}">
				
				<block v-for="(item,i) in cateList" :key="i">
					<view :class="['left-scroll-view-item',i===active? 'active' : '']" @click="activeChange(i)">{{item.cat_name}}</view>
				</block>
	
			</scroll-view>
			<!-- 右侧的滑动区 -->
			<scroll-view scroll-y="true" :style="{height:wh+'px'}" scroll-top="scrollTop">
				<!-- 二级分类 -->
			   <view class="cate-lv2" v-for="(item2,i2) in cateLevel2" :key="i2">
					<!-- 二级分类的标题 -->
			            <view class="cate-lv2-title">/{{item2.cat_name}}/</view>
					<!-- 当前二级分类的三季分类 -->
						<view class="cate-lv3-list" >
													<view class="cate-lv3-item" v-for="(item3,i3) in item2.children" :key="i3" @click="gotoGoodsList(item3)">
														<!--图片 -->
														<image :src="item3.cat_icon"></image>
														<!-- 文字 -->
														<text>{{item3.cat_name}}</text>
													</view>
						</view>
			    </view>
			</scroll-view>
			
		</view>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	export default {
		mixins:[badgeMix],
		data() {
			return {
				//当前设备 可用高度
				wh:0,
				//分类列表
				cateList:[],
				active:0,
				//二级分类列表
				cateLevel2:[],
				scrollTop:0
			};
		},
		onLoad() {
			//获取设备信息
		 const sysInfo=	uni.getSystemInfoSync()
		 this.wh=sysInfo.windowHeight-50
		 this.getCateList()
		},
		methods:{
		 async	getCateList(){
				const {data:res}=await uni.$http.get('/api/public/v1/categories')
				if(res.meta.status!==200) return uni.$showMsg()
				this.cateList=res.message
				this.cateLevel2=res.message[0].children

			},
			//鼠标点击事件
		activeChange(i){
			this.active=i
			//重新给二级分类赋值
			this.cateLevel2=this.cateList[i].children
			this.scrollTop=this.scrollTop===1? 0: 1
		},
		gotoGoodsList(item){
			uni.navigateTo({
				url:'/subpkg/goods_list/goods_list?cid='+item.cat_id
			})
		},
		gotoSearch(){
			uni.navigateTo({
				url:'/subpkg/search/search'
			})
		}
		
		}
	}
</script>

<style lang="scss">
.scroll-view-container{
	display: flex;
	
	.left-scroll-view{
		width: 200px;
		.left-scroll-view-item{
			background-color: #F7F7F7;
			line-height: 60px;
			text-align: center;
			font-size: 12px;
			
			&.active{
				background-color: #FFFFFF;
				position: relative;
				
				&::before{
					content: ' ';
					display: block;
					width: 3px;
					height: 30px;
					background-color: #c00000;
					position: absolute;
					top: 50%;
					left: 0%;
					transform: translateY(-50%);
				}
			}
		}
	}
	
	.cate-lv2-title{
		font-size: 12px;
		font-weight: bold;
		text-align: center;
		padding: 15px 0;
	}
	
	.cate-lv3-list{
		display: flex;
		flex-wrap: wrap;
		.cate-lv3-item{
			width: 33.33%;
			display: flex;
			flex-direction: column;
			justify-content: center;
			align-items: center;
			margin-bottom: 10px;
			image{
				width:60px;
				height: 60px;
			}
			text{
				font-size: 12px;
			}
		}
	}
	
	
}
</style>
